Turbine-engine.



2 SHEETS-SHEET I.

Patented Aug 21, 1917.

L. HACHENBERG TURBINE ENGINE. APPLICATION FILED .IAN.2|| I913- RENEWEDJAN- 16.1911- nwmron:-

monwm' L. HACHENBERG.

TURBINE ENGINE. APucATwN FILED 1Au.21. 1913. RENEWED JAN. 16. 1911.

1 27,63 Patented Aug 21,1917.

2 SHEETS-SHEET 2.

INVENTOR y Br' 5? 4 7% WITNESSES 'There is also a p TAT- LOUISHACHENBERG, OF NEW YORK, N. Y*., ASSIGNOR TO HACHENBERG TURBINE COMPANY,OF FLUSHING, NEW YORK, A CORPORATION OF NEW YORK.

. TURBINE-ENGINE;-

Application filed January 21, 1913, Serial No; 743,341.

7 To all whom it may concern:

Be it known that I, LOUIS HACHENBERG, a citizen of the United States,and resident of the borough of Bronx, in the city and State of New York,have invented a new and useful Improvement in Turbine-Engines, of whichthe following is a specification.

My invention consists in certain improvements in that type of turbineengine which is shown, described and claimed in my Letters Patent Nos.801585 and 801586, dated October 10, 1905; No. 823526, dated June 19,1906; and No. 877502, dated January 28, 1908. r

One object of this present invention is to provide certain novelfeatures in the constructlon and arrangement of the several parts of theenglne whereby the motive fluid is passed inwardly and outwardlythroughthe vanes of the stationary and rotary members, a plurality oftimes during one revolution of the rotary member whereby the efficiencyof the engine is materially increased, the path being arranged in easycurves so thatthe flow of the motive fluid is deflected as' little. aspossible from a straight line during its passage through the machinethereby eliminating all fluid pressure shocks and not impairing thevelocity of the motive fluid other than that absorbedby the movingvanes, the velocity of the fluid being never converted into pressurefrom the motive fluid supply chamber to the exhaust chamber. Anotherobject is to provide means for relieving pressure in the idle portion orportions of the machine and to utilize this relieved pressure at anotherportion of the machine. In all partial admission turbine engines, owingto the idle portions of the machine, there is a tendency of the fluidpressure equalizing itself through leakage at the; clearance spaces.tendency to increase the pressure due to the moving vanescarryingadditional motivefiuid along with them. This causes a greatdisturbance of the fluid during the idle portions and also at the pointswhere'the di turbing pressure in the moving vanes comes in contact witha succeeding portion ofthe motive fluid path through the vanes. Toovercome these faults, a channel is provlded in the sta- Specificationof Letters Patent.

Patented Aug. 21, 121?.

Renewed January 16, 1917. Serial No. 142,744.

-tionary member between its separated groups of vanes, said channelleading from one portion of the fluid pathto another portion thereof sothat the pressure is removed from the moving vanes as they leave oneportion of the path and this relieved pressure is again directed againstthe vanes as they enter another portion of the fluid path. This pressuretaken from the moving vanes has velocity and direction similar to thatof the motive fluid and thus causes no interference with the flow of themotive fluid but adds additional-effect to the turbine which otherwisewould be entirely lost.

A practical embodiment of my invention -is represented in theaccompanying drawings, in which Figure 1 is a transverse section throughthe engine in the plane of the line A-A of Fig. 2, looking in thedirection of the arrows, and

Fig. 2 s a longitudinal central section through the engine taken in theplane of the line lil3 of Fig. 1 looking inthe direction of the arrows.

, The engine represented herein is shown asbeing provided with twocoacting sets of stationary and rotary members. One set only will bespecifically described together with their adjacent parts, it beingunderstood that any number of sets may be employed.

The engine shaft is denoted by '1 and it is mounted in suitable bearings2, 3, of the cylinder heads 4: and 5. The lower half of the cylinderwall between the heads 4: and 5 is denoted by (3 and the upper half by7. lVithin the cylinder I have shown two sets of rotary and stationarymembers. Each stationary member is denoted by 8 and its rotary member by9., lhe rotary member is fixed to rotate with the shaft 1. The rotarymember is provided with one or more annular series of vanes 10, in thepresent instance fluid supply chamber is denoted b 13 and is providedwith one or more nozz es 14 arranged to direct the motive fluid inwardlythrough the vanes at this point.

A passage 15 is arranged to receive the tionary and rotary members and Idonot I Wish to limit myself to the 'number of times motive fluid as itpasses inwardly from the supply chamber 13 and direct it outwardlythrough the vanes at another point.

A passage 16 is arranged to receive the motive fluid as it passes fromthe passage 15 and direct the motive fluid inwardly through the vanes atanother point.

A passage 17 is arranged to take the motive fluid as it leaves thepassage 16 and direct the same outwardly through the vanes at' stillanother point.

The motive fluid exhaustchamber 18 is ar-' ranged in position to receivethemotive fluid from the passage 17 and convey it to any.

' chamber.

It will be seen that the motive fluid is more than once that the motivefluid is caused to pass inwardly and outwardly through said vanes.

While I have described the means for relieving the pressure on the vanesof the rotary member at their idle portions in connection with themachine shown herein, I do not wish to limit its use to the particularmachine herein shown but contemplate its use in connection with anypartial admission turbine engine.

What I claim is p 1. A turbine engine comprising a stationary memberhaving a plurality of annular series of vanes and a rotary member havinga plurality of annular series of vanes coacting with and in the sameplane as the stationary vanes and means for directing the flow of themotiveffluid inwardly and outwardly through the several series ofstationary and rotary vanes a plurality of times during one revolutionof-the rotary member.

2. A turbine engine comprising a station- .ary member having a pluralityof annular series of vanes and a rotary member having a. plurality ofannular series of vanes 'coacting with and in the same plane as passedinwardly and outwardly a plurality of times, in the presentinstance'twice inwardly and twice outwardly through the vanes during onerevolution of the rotary member, or, in other Words, that the motivefluid is caused to impinge against the vanes four times during onerevolution of the rotary member.

To eliminate the back pressure upon the vanes of the movable memberduring their idle portions, I- provide the blank portions 12 of thestationary member from the motive fluid supply chamber to the exhaustchamber'with groups of channels 25, 26,. 27, the channels 25 beingarranged to relieve the pressure from 'the vanes 10 of the rotary memberas they leave the first portion of the motive fluid. path and directsuch pressure against the .vanes as they enter 4 the second portion ofsaid path. The channels 26 are arranged to takethe pressure 'from thevanes of the rotary member as they leave.

the second portion of the path and direct it against said vanes as theyenter the third portion of said path. The channels 27 are arranged totake the pressure from the vanes of'the movable member as they leave thethird portion of the motive fluidpath and direct the. same against thevanes as they enter the fourth portionof said patlf. I do notwishto-limit myself to the numberof annular series of-vaneson the sta-.

the stationary vanes, a motive fluid supply chamber arranged to directthe motive fluid inwardly through the stationary and rotary series ofvanes, a passage arranged to receive the fluid as it passes inwardlyfrom the vanes and direct the fluid outwardly through said vanes atanother point and a larger passage arranged to receive the fluid as itpasses outwardly from said vanes and direct the fluid inwardly throughsaid vanes at another point and a still larger passage arranged toreceive the fluid as it passes inwardly from said vanes and direct thefluid outwardly at another point through said vanes and an exhaustchamber arranged to receive the fluid as it passes outwardly from saidvanes.

3. A turbine engine comprising stationary and rotary vane carryin memers having a motive fluid path leafing inwardly and outwardlytherethrough atseparated points and means for relieving the vanes of thelotary member from pressure between said and means in the stationarymember .for;

memberfrom ressure between said points points.

4. A turbine engine comprising stationary and rotary vane carryingmembers having a motive fluid path. leading inwardly and outwardlytherethrough at separated points relieving the vanes of the rotary 5.turbine engine comprisin stationary and rotary vane car mem ers having amotive fluid path lze a fmg inwardly and outwardly therethrough atseparated points 180 the path and a channel in the stationary member forrelieving the vanes of the rotary member from pressure between saidpoints.

(5. A turbine engine comprising stationary and rotary vane carryingmembers having a motive fluid path leading inwardly and outwardlytherethrough at separated points and channels in the stationary memberfor relieving the vanes of the rotary memberfrom pressure between saidpoints.

7 A turbine engine comprising stationary and rotary vane carryingmembers having a motive fluid path leading inwardly and outwardlytherethrough at separated points and means for relieving the vanes ofthe romember from pressure as they leave at one point and utilize saidpressure on the vanes at another point.

8. A turbine engine comprising stationary tary and rotary vane carryingmembers having a motive fluid path leading inwardly and outwardlytherethrough at separated points and means in the stationary member forrelieving the vanes of the rotary member from pressure as they leave.the path at one point and utilize said pressure on the vanes at anotherpoint,

9. A turbine engine comprising stationary and rotary vane carryingmembers having a motive fluid outwardly therethrough at separated pointsand a channel in the stationary member for .relieving the vanes of therotary member from pressure as they leave the path-at one point anddirecting said pressure against v the vanes at another point.

10. A turbine engine comprisin stationary and rotary vane carrying memers hav ing a motive fluid path leading inwardly and outwardly oints andchannels in the stationary memher for relieving the vanes of the rotarymember from pressure as they leave the path at one set of points anddirecting saidpath leading inwardly and 30 therethrough at separated 4opressure against the vanes at another set

